【opencv-python 6】获取RIO、泛洪填充

超、凢脫俗 2022-02-21 04:36 274阅读 0赞

（1）获取RIO区域

（2）泛洪填充

import cv2 as cv
    import numpy as np
    
    # 获取ROI
    src = cv.imread('D:\images\yuanyuan.png')
    cv.imshow('input image',src)
    
    face = src[50:250,150:350] # 提取ROI区域
    cv.imshow('face',face)
    
    gray = cv.cvtColor(face,cv.COLOR_BGR2GRAY)
    cv.imshow('gray',gray)
    
    back2face = cv.cvtColor(gray,cv.COLOR_GRAY2BGR)
    src[50:250,150:350] = back2face
    cv.imshow("back2src",src)
    
    # 泛洪填充
    def fill_color_demo(image):
        copyImg = image.copy()
        h,w = image.shape[:2]
        mask = np.zeros([h+2,w+2],np.uint8)
        cv.floodFill(copyImg,mask,(30,30),(0,0,255),(100,100,100),(50,50,50),cv.FLOODFILL_FIXED_RANGE)
        cv.imshow('fill_color_demo',copyImg)
        
    fill_color_demo(src)
    
    cv.waitKey(0)
    cv.destroyAllWindows()

运行结果

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BsU29uZ19DU0RO_size_16_color_FFFFFF_t_70][]

![201904101412278.png][]

![20190410141323675.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BsU29uZ19DU0RO_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BsU29uZ19DU0RO_size_16_color_FFFFFF_t_70 2][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BsU29uZ19DU0RO_size_16_color_FFFFFF_t_70]: /images/20220221/22ca40a8e85c4fb39d2b6a21c61d9c7b.png
[201904101412278.png]: /images/20220221/80b9dcf4026540168c15b23c969d085a.png
[20190410141323675.png]: /images/20220221/a8858b68c6a5442b883066d98cf9b1f3.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BsU29uZ19DU0RO_size_16_color_FFFFFF_t_70 1]: /images/20220221/8e13d9a6d4c64e1caac32c8bfe81d548.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3BsU29uZ19DU0RO_size_16_color_FFFFFF_t_70 2]: /images/20220221/82e7833d6ffb453caaa7b032bbbbf5af.png